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RZ3A40D40
Solid State Relay, 3PST-NO, 40 A, 440 VAC, Panel Mount, Screw, Zero Crossing
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: CARLO GAVAZZI
- Product type:
- SVHC: No SVHC (21-Jan-2025)
- Load Current: 40A
- Product Range: RZ3A Series
- Relay Mounting: Panel Mount
- Switching Mode: Zero Crossing
- Relay Terminals: Screw
- Control Voltage Max: 32VDC
- Control Voltage Min: 4VDC
- Contact Configuration: 3PST-NO
- Operating Voltage Max: 440VAC
- Operating Voltage Min: 24VAC
| Delivery and price | |
|---|---|
| Units per pack | 1 |
| Price | 135.26 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
## **Solid State Relays Industrial, 3-Phase ZS Type RZ3A** - **3-phase Solid State Relay** - **Zero switching** - **Rated operational current: 3 x 25, 40, 55 or 75 A** - **Rated operational voltage: Up to 600 VAC** - **Control voltage 5 VDC, 4-32 VDC or 24-275 VAC** - **Integral snubber networks** - **Over-temperature protection option with alarm output** - **IP 10 back-of-hand protection** - **LED indication of control input and over-temperature alarm status** ## **Product Descri tion p** A Solid State Relay family strate. designed to switch various AC- or DC-controlled versions loads such as heating eleare available. Built-in LED staments, motors and transformtus indication for applied coners. The relay is capable of trol voltage and over-temperaswitching high voltages up to ture alarm (optional). A version 600 VACrms. that can be controlled with 5 VDC @ 15 mA (max) is also For higher reliability and load available (LD). For higher reliability and load available (LD). cycle capability three semiconductor power units are solThe series covers a range of dered directly on to the direct load currents up to 75 AACrms. copper bonded (DCB) sub- **Ordering Key RZ 3 A 60 D 75 P** **Solid State Relay Number of poles Switching mode Rated opertional voltage Control voltage Rated opertional current Options** ## **T e Selection yp** |**Switching**|**Rated operational**|**Rated operational**|**Control**|**Option**| |---|---|---|---|---| |**mode**|**voltage**|**current**|**voltage**|| |A: Zero Switching|40: 400 VACrms|25: 3 x 25 AACrms|LD: 5 VDC|P: Over-| ||60: 600 VACrms|40: 3 x 40 AACrms|D: 4-32 VDC|temperature| |||55: 3 x 55 AACrms|A: 24-275 VAC/24-50 VDC|protection and| |||75: 3 x 75 AACrms||alarm output| |||||(available only for A and D input)| ## **Selection Guide** |**Rated operational**|**Control**|**Rated operational current**|**Rated operational current**||| |---|---|---|---|---|---| |**voltage**|**voltage**|**3 x 25 A**|**3 x 40 A**|**3 x 55 A**|**3 x 75 A**| |400 VACrms|5 VDC|**RZ3A40LD25**|**RZ3A40LD40**|**RZ3A40LD55**|**RZ3A40LD75**| ||4-32 VDC|**RZ3A40D25**|**RZ3A40D40**|**RZ3A40D55**|**RZ3A40D75**| ||24-275 VAC/24-50 VDC|**RZ3A40A25**|**RZ3A40A40**|**RZ3A40A55**|**RZ3A40A75**| |600 VACrms|5 VDC|**RZ3A60LD25**|**RZ3A60LD40**|**RZ3A60LD55**|**RZ3A60LD75**| ||4-32 VDC|**RZ3A60D25**|**RZ3A60D40**|**RZ3A60D55**|**RZ3A60D75**| ||24-275 VAC/24-50 VDC|**RZ3A60A25**|**RZ3A60A40**|**RZ3A60A55**|**RZ3A60A75**| ## **Notes** Over-temperature protection and alarm output: add suffix P to include over-temperature protection and alarm output. Example: RZ3A60D75P. Not available with “LD” type control. ## **Insulation** ## **Thermal S ecifications p** |Rated insulation voltage||Operatingtemperature|-30° to +80°C(-22° to +158° F)| |---|---|---|---| |Input to output|≥4000 VACrms|Storage temperature|-40° to +100°C(-40° to + 212° F)| |Output to case|≥4000 VACrms|Junction temperature|≤+125°C (+ 257˚F)| **1** Specifications are subject to change without notice (01.10.2003) **Gross Automation (877) 268-3700 · www.carlogavazzisales.com · sales@grossautomation.com** **RZ3A** ## **General S ecifications p** |**General Specifications**|||| |---|---|---|---| ||**RZ3A40..**||**RZ3A60..**| |Operational voltage ranges|24-440 VAC||42-660 VAC| |Non-rep.peak voltage|850 Vp||1200 Vp| |Operational frequencyrange|45 to 65 Hz||45 to 65 Hz| |Overvoltage category|III||III| |Pollution degree|3||2| |Approvals|UL,cUL,CSA||UL,cUL,CSA| |CE-marking|Yes||Yes| ## **In ut S ecifications p p** ||**RZ3A..LD..**||**RZ3A..D..**||**RZ3A..A..**| |---|---|---|---|---|---| |Control voltage range|5 VDC||4-32 VDC||24-275 VAC/24-50 VDC| |Pick-up voltage|4.5 VDC||3.8 VDC||18 VAC/20 VDC| |Drop-out voltage|1.2 VDC||1.2 VDC||9 VAC/DC| |Input current|≤15 mA||≤23 mA||≤15 mA| |Response time pick-up|||||| |Power output=50 Hz|10 ms||10 ms||20 ms| |Response time drop-out|||||| |Power output = 50 Hz|10 ms||10 ms||30 ms| |All data at 25°C|||||| ## **Out ut S ecifications p p** ||**RZ3A..25..**|**RZ3A..40..**|**RZ3A..55..**|**RZ3A..75..**| |---|---|---|---|---| |Rated operational current||||| |AC51 @ Ta=25°C|25 Arms|40 Arms|55 Arms|75 Arms| |AC53a @ Ta=25°C|5 Arms|8 Arms|15 Arms|20 Arms| |Minimum operational current|150 mArms|150 mArms|150 mArms|150 mArms| |Rep. overload current t=1 s|37 Arms|60 Arms|< 125 Arms|< 150 Arms| |Non-rep. surge currentt = 10 ms|230 Ap|300 Ap|600 Ap|1000 Ap| |Off-state leakage current|< 3 mArms|< 3 mArms|< 3 mArms|< 3 mArms| |I2t for fusingt = 10 ms|265 A2s|450 A2s|1800 A2s|6600 A2s| |Critical dI/dt @ 50 Hz|≥100 A/µs|≥100 A/µs|≥100 A/µs|≥100 A/µs| |On-state voltage drop|≤1.6 Vrms|≤1.6 Vrms|≤1.6 Vrms|≤1.6 Vrms| |Critical dV/dt off-state|≥500 V/µs|≥500 V/µs|≥500 V/µs|≥500 V/µs| ## **Over-temperature Protection (Option: ...P)** **==> picture [490 x 171] intentionally omitted <==** **----- Start of picture text -----**<br> SSR Input<br>Green LED<br>| | —<br>SSR Output<br>Over-temperature<br>Over-temperature<br>sensing<br>detection<br>Red LED Over-temperature protection is ON<br>SSR output disabled<br>ee<br>Closed<br>Alarm status<br>Open<br>ee ee ee<br>*After over-temperature condition is removed, SSR can be reset by switching OFF the control input for more than 20 ms and switching back ON: this will<br>*switch ON the SSR output<br>**----- End of picture text -----**<br> **2** Specifications are subject to change without notice (01.10.2003) **Gross Automation (877) 268-3700 · www.carlogavazzisales.com · sales@grossautomation.com** **RZ3A** ## **Heatsink Dimensions (load current versus ambient temperature)** ## **RZ ..25** ## **RZ ..40** |**25.0**<br>**22.5**<br>**20.0**<br>**17.5**<br>**15.0**<br>**12.5**<br>**10.0**<br>**7.5**<br>**5.0**<br>**2.5**<br>Pot<br>Pot|~~ee ee~~<br>~~Pf~~|~~ee ee~~<br>~~Pf~~|~~ee ee~~<br>~~Pf~~|~~ee~~|~~ee~~|~~ee~~|~~ee~~|~~ee~~|**92**<br>**80**<br>**68**<br>**58**<br>**47**<br>**38**<br>**29**<br>**21**<br>**13**<br>**6**| |---|---|---|---|---|---|---|---|---|---| ||**0.44**<br>~~ee~~<br>~~Pf~~<br>~~Pf~~|**0.34**<br>~~ee ee~~<br>~~Pf~~<br>|<br>~~Pf~~|**0.23**<br>~~ee~~<br>|<br>ft||**0.12**<br>~~ee~~<br>ft|**0.01**<br>~~ee~~|**--**<br>~~ee~~|**--**<br>~~ee~~|| ||**0.62**<br>**0.84**<br>~~ee~~<br>~~Pf~~<br>~~Pf~~<br>~~Pt~~|**0.49**<br>**0.69**<br>~~ee ee~~<br>~~Pf~~<br>|<br>~~Pf~~<br>**|**<br>~~Pt~~|**0.37**<br>**0.54**<br>~~ee~~<br>|<br>ft<br>**|**<br>|<br>fT||**0.24**<br>**0.40**<br>~~ee~~<br>ft<br>~~ff~~<br>fT~~|~~|**0.12**<br>**0.25**<br>~~ee~~<br>~~ff~~<br>~~|~~|**--**<br>**0.10**<br>~~ee~~|**--**<br>**--**<br>~~ee~~|| ||**1.12**<br>**1.51**<br>**2.06**<br>~~Pf~~<br>~~Pt~~<br>P|<br>ee<br>Pot|**0.95**<br>**1.30**<br>**1.80**<br>~~Pf~~<br>**|**<br>~~Pt~~<br>P|<br>|<br>ee<br>Pot|**0.78**<br>**1.09**<br>**1.54**<br>**|**<br>| <br>fT<br>|<br>ft<br>ee||**0.60**<br>**0.88**<br>**1.27**<br> ~~ff~~<br>fT ~~|~~<br>ft<br>||**0.43**<br>**0.67**<br>**1.01**<br>~~ff~~<br>~~|~~|**0.25**<br>**0.46**<br>**0.75**|**0.08**<br>**0.25**<br>**0.48**|| ||**2.75**<br>**3.83**<br>**6.01**<br>P|<br>ee<br>Pot<br>Pot<br>ee|**2.40**<br>**3.35**<br>**5.26**<br>P|<br>|<br>ee <br>Pot<br>|<br>Pot<br>|<br>ee|**2.06**<br>**2.87**<br>**4.51**<br>|<br>ft<br> ee<br>|<br>tT<br>|ET||**1.72**<br>**2.39**<br>**3.76**<br>ft<br>|<br>tT|<br>ET|**1.37**<br>**1.91**<br>**3.01**<br>|<br>ET|**1.03**<br>**1.43**<br>**2.25**|**0.69**<br>**0.96**<br>**1.50**|| ||**12.62 **<br>Pot<br>ee|**11.04**<br>|<br>Pot<br>|<br>ee|**11.04 9.46**<br>|<br>tT<br>|ET||**7.89**<br>tT|<br>ET|**6.31**<br>|<br>ET|**4.73**|**3.15**|| ## **RZ ..55** |~~s~~e|~~s~~e|~~s~~e|e|e|e|e|e|**164**<br>**148**<br>**133**<br> **118**<br> **103**<br>**87**<br>**73**<br>**58**<br>**43**<br>**29**<br>**14**<br>**7**| |---|---|---|---|---|---|---|---|---| |**0.29**<br>~~s~~<br>~~$+~~|**0.23**<br>~~s~~e<br>~~$+~~|**0.17**<br>e<br>~~$+~~||**0.11**<br>~~$+~~|**0.05**<br>~~$+~~|**--**<br>~~$+~~|**--**<br>~~4~~|| |**0.36**<br>**0.44**<br>~~$+~~<br>~~oo~~<br>~~ee~~|**0.29**<br>**0.36**<br>~~$+~~<br>~~oo~~<br>~~ee~~|**0.22**<br>**0.29**<br>~~$+~~<br>~~oo~~<br>~~ee~~||**0.16**<br>**0.21**<br>~~$+~~<br>~~oo~~|**0.09**<br>**0.14**<br>~~$+~~<br>~~oo~~|**0.02**<br>**0.06**<br>~~$+ ~~|**--**<br>**--**<br> ~~4~~|| |**0.54**<br>**0.67**<br>**0.85**<br>~~ee~~<br>ee<br>ee<br>ee|**0.46**<br>**0.58**<br>**0.74**<br>~~ee~~<br>ee<br>ee<br>eeee|**0.37**<br>**0.48**<br>**0.62**<br>~~ee~~<br>ee <br>ee<br>ee||**0.29**<br>**0.38**<br>**0.51**<br> ee<br>ee<br>ee|**0.20**<br>**0.28**<br>**0.39**<br>ee<br>ee<br>ee|**0.12**<br>**0.19**<br>**0.28**<br>ee<br>ee|**0.03 **<br>**0.09 **<br>**0.16**<br>ee|| |**1.10**<br>**1.38**<br>**1.85**<br>ee<br>I<br>FREER,<br>ee|**0.96**<br>**1.21**<br>**1.62**<br>eeee<br>I<br>FREER,<br>ee|**0.82**<br>**1.04**<br>**1.39**<br>ee<br>I<br>FREER,<br>ee||**0.68**<br>**0.87**<br>**1.16**<br>ee<br>I<br>FREER,|**0.55**<br>**0.69**<br>**0.93**<br>ee<br>I<br>FREER,|**0.41**<br>**0.52**<br>**0.70**<br>ee<br>I<br>FREER,|**0.27**<br>**0.35**<br>**0.46**<br>ee<br>I<br>FREER,|| |**2.80**<br>**5.62**<br>**11.26**<br>FREER,<br>ee<br>**P**|**2.45**<br>**4.92**<br>**9.85**<br>FREER,<br>ee <br>**P**P|**2.10**<br>**4.21**<br>**8.45**<br>FREER,<br> ee<br>P **P**||**1.75**<br>**3.51**<br>**7.04**<br>FREER,<br>**P**eel|**1.40**<br>**2.81**<br>**5.63**<br>FREER,<br>eel<br>P|**1.05**<br>**2.11**<br>**4.22**<br>FREER,<br>eel<br>P|**0.70**<br>**1.40**<br>**2.82**<br>FREER,<br>eel<br>P|| ## **Heatsink Selection** |**Heatsink Selection**|| |---|---| |**Carlo Gavazzi Heatsink**<br>(see Accessories)|**Thermal resistance**| |No heatsink required<br>RHS 300 Assy or backplate<br>RHS 112 Assy<br>RHS 301 Assy<br>RHS 112 F Assy<br>RHS 301 F Assy<br>Consult your distributor|**Rth s-a**<br>> 8.0<br>K/W<br>5.0<br>K/W<br>1.1<br>K/W<br>0.8 K/W<br>0.4<br>K/W<br>0.25 K/W<br>< 0.25 K/W| |**40.0**<br>**36.0**<br>**32.0**<br>**28.0**<br>**24.0**<br>**20.0**<br>**16.0**<br>**12.0**<br>**8.0**<br>**4.0**<br>Pot<br>Pot|~~ee~~<br>~~ee~~|~~ee~~<br>~~ee~~|~~ee~~<br>~~ee~~|~~ee~~<br>~~ee~~|~~ee~~<br>~~ee~~|~~ee~~<br>~~ee~~|~~ee~~<br>~~ee~~|~~ee~~<br>~~ee~~|**101**<br>**91**<br>**80**<br>**70**<br>**60**<br>**49**<br>**39**<br>**29**<br>**19**<br>**10**| |---|---|---|---|---|---|---|---|---|---| ||**0.54**<br>~~ee~~<br>~~ee~~|**0.44**<br>~~ee~~<br>~~ee~~|**0.34**<br>~~ee~~<br>~~ee~~<br>~~ee~~<br>~~ee ee~~||**0.24**<br>~~ee~~<br>~~ee~~<br>~~ee~~|**0.14**<br>~~ee~~<br>~~ee~~<br>~~ee~~|**0.04**<br>~~ee~~<br>~~ee~~<br>~~ee~~|**--**<br>~~ee~~|| ||**0.66**<br>**0.81**<br>~~ee~~<br>~~ee~~<br>~~**P|**~~|**0.55**<br>**0.68**<br>~~ee~~<br>~~ee~~<br>~~**P|**~~<br>**|**|**0.44**<br>**0.56**<br>~~ee~~<br>~~ee~~<br>~~ee~~<br>~~ee ee~~<br>**|**||**0.33**<br>**0.43**<br>~~ee~~<br>~~ee~~<br>~~ee~~|**0.22**<br>**0.31**<br>~~ee~~<br>~~ee~~<br>~~ee~~|**0.11**<br>**0.18**<br>~~ee~~<br>~~ee~~<br>~~ee~~|**--**<br>**0.06**<br>~~ee~~|| ||**1.00**<br>**1.26**<br>**1.62**<br>~~**P|**~~<br>P|<br>ee|**0.86**<br>**1.09**<br>**1.42**<br>~~**P|**~~<br>**|**<br>P|<br>|<br>ee|**0.72**<br>**0.93**<br>**1.21**<br>~~ee ee~~<br>**|**<br>|<br>ee<br>ee||**0.57**<br>**0.76**<br>**1.01**<br>~~ee~~<br>|]<br>ee|**0.43**<br>**0.59**<br>**0.81**<br>~~ee~~<br>|]<br>ee|**0.29**<br>**0.42**<br>**0.61**<br>~~ee~~<br>|]<br>ee|**0.14**<br>**0.25**<br>**0.41**<br>ee|| ||**2.03**<br>**2.72**<br>**4.11**<br>P|<br>ee<br>Pot<br>Pot|**1.78**<br>**2.38**<br>**3.59**<br>P|<br>|<br>ee<br>Pot<br>|<br>PottT|**1.52**<br>**2.04**<br>**3.08**<br>|<br>ee<br>ee<br>|<br>tT<br>|<br>ee||**1.27**<br>**1.70**<br>**2.57**<br>|]<br>ee<br>||**1.02**<br>**1.36**<br>**2.05**<br>|]<br>ee<br>tt|**0.76**<br>**1.02**<br>**1.54**<br>|]<br>ee<br>tt|**0.64**<br>**1.03**<br>**1.81**<br>ee<br>tt|| ||**8.26**<br>Pot<br>Pot<br>ee|**7.22**<br>Pot<br>|<br>PottT<br>ee|**6.19**<br>|<br>tT<br>|<br>ee<br>ee||**5.16**<br>| <br>ee|**4.13**<br> tt<br>ee|**3.10**<br>tt<br>ee|**4.14**<br>tt<br>ee|| ## **RZ ..75** |**75.0**<br>**70.0**<br>**65.0**<br>**60.0**<br>**55.0**<br>**50.0**<br>**45.0**<br>**40.0**<br>**35.0**<br>**30.0**<br>**25.0**<br>**20.0**<br>**15.0**<br>**10.0**<br>**5.0**<br>Pot<br>Pot<br>Pot<br>Pot<br>Pot|Pot<br>||Pot<br>||Pot<br>||TE|TE|TE|TE|TE|**201**<br>**184**<br> **167**<br> **151**<br> **136**<br> **121**<br> **106**<br>**92**<br>**79**<br>**66**<br>**54**<br>**42**<br>**31**<br>**20**<br>**10**| |---|---|---|---|---|---|---|---|---|---| ||**0.27**<br>Pot<br>Pot|**0.22**<br>Pot<br>|<br>Pot<br>||**0.17**<br>TE<br>EE||**0.12**<br>TE<br>EE|**0.07**<br>TE<br>EE|**0.02**<br>EE|**--**<br>EE|| ||**0.32**<br>**0.38**<br>Pot<br>Pot<br>~~a~~<br>Pot|**0.27**<br>**0.32**<br>Pot<br>| <br>Pot<br>| <br>Pot<br>||**0.21**<br>**0.26**<br> TE<br> EE<br>~~EE~~||**0.16**<br>**0.20**<br>TE<br>EE<br>~~EE~~|**0.10**<br>**0.14**<br>TE<br>EE<br>~~EE~~|**0.05**<br>**0.08**<br>EE<br>~~EE~~|**--**<br>**0.02 **<br>EE<br>~~EE~~|| ||**0.44**<br>**0.52**<br>**0.62**<br>~~a~~<br>Pot<br>PT<br>Pot<br>Pot|**0.38**<br>**0.45**<br>**0.54**<br>Pot<br>| <br>PT<br>|<br>Pot<br>|<br>Pot<br>||**0.31**<br>**0.38**<br>**0.45**<br> ~~EE~~<br>| <br>rE<br>EE||**0.25**<br>**0.30**<br>**0.37**<br>~~EE~~<br> cE<br>rE<br>EE|**0.18**<br>**0.23**<br>**0.29**<br>~~EE~~<br>cE<br>EE|**0.11**<br>**0.16**<br>**0.21**<br>~~EE~~<br>EE|**0.05 **<br>**0.08 **<br>**0.12 **<br>~~EE~~<br>EE|| ||**0.74**<br>**0.87**<br>**1.01**<br>Pot<br>Pot<br>P|<br>EEREEEE|**0.64**<br>**0.76**<br>**0.89**<br>Pot<br>| <br>Pot<br>| <br>P|<br>|<br>EEREEEE|**0.55**<br>**0.65**<br>**0.76**<br> rE<br> EE<br>Tt<br>EEREEEE||**0.46**<br>**0.54**<br>**0.63**<br>rE<br>EE<br>Tt<br>EEREEEE|**0.36**<br>**0.43**<br>**0.51**<br>EE<br>Tt<br>EEREEEE|**0.27**<br>**0.32**<br>**0.38**<br>EE<br>Tt<br>EEREEEE|**0.17 **<br>**0.22**<br>**0.25**<br>EE<br>Tt<br>EEREEEE|| ||**1.21**<br>**1.49**<br>**1.90**<br>EEREEEE<br>=|**1.06**<br>**1.30**<br>**1.67**<br>EEREEEE<br>=<br>P||**0.91**<br>**1.11**<br>**1.43**<br>EEREEEE<br>TIT<br>=<br>P|<br>|||**0.76**<br>**0.93**<br>**1.19**<br>EEREEEE<br>TIT<br>||**0.60**<br>**0.74**<br>**0.95**<br>EEREEEE<br>TIT<br>tT|**0.45**<br>**0.56**<br>**0.71**<br>EEREEEE<br>TIT<br>tT|**0.30**<br>**0.37**<br>**0.48**<br>EEREEEE<br>TIT|| ||**2.60**<br>=<br>ESSE|**2.28**<br>=<br>P|<br>ESSE|**1.95**<br>=<br>P|<br>|<br>ESSE||**1.63**<br>|<br>ESSE|**1.30**<br>tT<br>ESSE|**0.98**<br>tT<br>ESSE|**0.65**<br>ESSE|| ||**4.01**<br>ESSE|**3.51**<br>ESSE|**3.01**<br>ESSE<br>ee||**2.51**<br>ESSE|**2.01**<br>ESSE|**1.50**<br>ESSE|**1.00**<br>ESSE|| ||**8.24**<br>ee|**7.21**<br>ee|**6.18**<br>ee<br>ee||**5.15**<br>ee|**4.12**<br>ee|**3.09**<br>ee|**2.06**<br>ee|| ## **Alarm Out ut S ecifications p p** |Collector - emitter voltage|35 Vdc| |---|---| |Emitter - collector voltage|6 Vdc| |Collector current|50 mA| |Delay time on reset|20 mS| **3** Specifications are subject to change without notice (01.10.2003) **Gross Automation (877) 268-3700 · www.carlogavazzisales.com · sales@grossautomation.com** **RZ3A** ## **Connection Dia rams g** **==> picture [395 x 211] intentionally omitted <==** **----- Start of picture text -----**<br> Terminal Wiring Common Alarm Wiring<br>A1 (~) (+) Regulation T1 B1 A1<br>ZC<br>Output A B2 A2<br>L1<br>T2<br>| SMSC Ie<br>Control ZC B1 A1<br>AC/DCInput Output B B2 A2<br>L2<br>T3<br>ZC<br>Output C<br>A2 (~) (-) L3 B1 A1<br>B2 A2<br>B1 (+)<br>Alarm a Over Temp<br>Output Circuit<br>Logic<br>B2 (-)<br>Input<br>**----- End of picture text -----**<br> ## **Housin S ecifications g p** **==> picture [203 x 215] intentionally omitted <==** **----- Start of picture text -----**<br> ||||| |---|---|---|---| |Weight|Approx. 380 g| |Material|Noryl| |Base plate| |25, 40, 55A|Aluminum, nickel-plated| |75A|Copper, nickel-plated| |Potting compound|Polyurethane| |Relay| |Mounting screws|M5| |Mounting torque|≤|1.5 Nm| |Control terminal| |Mounting screws|M3| |Mounting torque|≤|0.5 Nm| |Wire size|Max.|2 x 2.5 mm|[2]| |Min.|2 x 1.0 mm|[2]| |Power terminal| |Mounting screws|M5| |Mounting torque|≤|2.5 Nm| |2 x 6 mm|[2]|(AWG8)| |Wire size|Max.|2 x 6 mm|[2]| |Min.|2 x 1 mm|[2]| **----- End of picture text -----**<br> ## **Dimensions** **==> picture [195 x 191] intentionally omitted <==** **----- Start of picture text -----**<br> 73.5 4xM3 6xM5<br>ee ele<br>lien |<br>12 5.3<br>Moeaylew)| A1 A2 wey<br>ldla)* @ CompoundHeatsink<br>je i [el<br>® | @<br>B1 B2<br>t-fHPL_® i| CKy@ on nl<br>|__| 47.6<br>© Relay On LED<br>@ Over-temperature Alarm Trip LED (suffix “P” option)<br>41<br>L3 T3<br>103 92<br>L2 T2<br>L1 T1<br>**----- End of picture text -----**<br> ## **Alarm Out ut Connection p** **==> picture [403 x 129] intentionally omitted <==** **----- Start of picture text -----**<br> Active Low Active High<br>VCC VCC Forward voltage ≤35 VDC<br>Reverse voltage ≤6 VDC<br>B1 Through current ≤50mA<br>Alarm reset : interrupt control<br>input for more than 20ms<br>B2<br>RZ3A..<br>Logic Input Logic Input<br>Alarm Output<br>**----- End of picture text -----**<br> **4** Specifications are subject to change without notice (01.10.2003) **Gross Automation (877) 268-3700 · www.carlogavazzisales.com · sales@grossautomation.com**
Updated at June 10, 2026
Founded in Milan in 1931, Carlo Gavazzi is a globally recognized leader in the design and manufacture of high-quality automation components. For nearly a century, the company has driven technological innovation in the industrial and building automation markets. With ISO 9001-certified production facilities across Europe and Asia, Carlo Gavazzi delivers state-of-the-art solutions tailored for demanding applications, including HVAC, renewable energy, semiconductor manufacturing, and electric vehicle charging infrastructure. Our extensive portfolio of Carlo Gavazzi components focuses heavily on their industry-leading switching and sensing technologies. We carry a comprehensive selection of solid state relays, contactors, and power relays engineered for exceptional reliability and thermal performance. Alongside these robust switching solutions, our range features a wide array of precision sensors, with a strong emphasis on proximity switches and light sensors that are critical for automated manufacturing processes, mobile equipment, and access control systems. Beyond core sensing and switching, the Carlo Gavazzi lineup extends into essential power management, circuit protection, and control devices. This includes highly efficient AC/DC converters, thermal magnetic circuit breakers, and advanced panel instrumentation designed to monitor and optimize energy efficiency. From current sensing transformers to motor starters, engineers consistently trust Carlo Gavazzi to provide competitive, dependable, and forward-thinking components for their most complex automation challenges.
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